In pavlov's experiments he paired a sound with the presentation of food and measured salivation to each. in this experiment the conditioned stimulus was the

All living things share certain characteristics. which of the following characteristics is not shared by all living things?

In 1914, alabama produced 1.7 million bales of cotton, but three years later produced only 515,000, bales. meanwhile, in georgia, 5.2 million acres of land was dedicated for cotton production in 1914, but by 1923 there were just 2.6 million acres used for growing cotton. all of this was the result of the work of a tiny insect: the boll weevil. alabama and georgia first felt the effects of the boll weevil at different times. what would account for this difference in timing?

The pka of three different c―h bonds is given below. explain the observed trend in pka. select the single best answer.